[c-nsp] SFP high power alarm

John Brown john at citylinkfiber.com
Tue Aug 21 08:26:50 EDT 2012


Put a real optical power meter on the fibers and adjust with pads as
needed to get your levels within specs.

On 8/21/12 4:37 AM, "Patrick Cole" <z at amused.net> wrote:

>Marc,
>
>Perhaps it was right on the limit of max receive threshold and they
>repaired a splice that was dodgy to start with increasing the signal.
>
>Patrick
>
>
>Tue, Aug 21, 2012 at 11:13:48AM +0100, marc williams wrote:
>
>
>> 10 GIG cisco compatible SFP in a 3750-X switch.
>> we started to see this error message after a fibre break and repair:
>> 
>> %SFF8472-5-THRESHOLD_VIOLATION: Te4/1/2: Tx power high alarm;
>> Operating value:   0.6 dBm, Threshold value:   0.0 dBm
>> 
>> Cant see how the TX power can go high? any ideas? Interface is up and
>> working ok.
>> 
>> --
>> Marc
>> 
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